[INFO] cloning repository https://github.com/reductist/aoc_2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reductist/aoc_2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freductist%2Faoc_2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freductist%2Faoc_2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10cc4c279a637271d0e3340e0c39722de1f76986
[INFO] documenting reductist/aoc_2021 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freductist%2Faoc_2021" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reductist/aoc_2021 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reductist/aoc_2021
[INFO] finished tweaking git repo https://github.com/reductist/aoc_2021
[INFO] tweaked toml for git repo https://github.com/reductist/aoc_2021 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/reductist/aoc_2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94f620cf455843426a152a1339578bae78e88050bc1e00753d523e1a9d192c36
[INFO] running `Command { std: "docker" "start" "-a" "94f620cf455843426a152a1339578bae78e88050bc1e00753d523e1a9d192c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94f620cf455843426a152a1339578bae78e88050bc1e00753d523e1a9d192c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f620cf455843426a152a1339578bae78e88050bc1e00753d523e1a9d192c36", kill_on_drop: false }`
[INFO] [stdout] 94f620cf455843426a152a1339578bae78e88050bc1e00753d523e1a9d192c36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1344fc06a099c0a1866750fe7d5718e06b6ebddd5a3228080b73805cf9f57bbd
[INFO] running `Command { std: "docker" "start" "-a" "1344fc06a099c0a1866750fe7d5718e06b6ebddd5a3228080b73805cf9f57bbd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]     Checking atoi v0.4.0
[INFO] [stderr]     Checking papergrid v0.1.23
[INFO] [stderr]     Checking bitvec v0.19.6
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling tabled_derive v0.1.8
[INFO] [stderr]     Checking tabled v0.3.0
[INFO] [stderr]  Documenting aoc-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows, drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows, drain_filter)]
[INFO] [stdout]   |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `aoc-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name aoc_2021 src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=206078cf61706f13 -L dependency=/opt/rustwide/target/debug/deps --extern atoi=/opt/rustwide/target/debug/deps/libatoi-be63621425b92c7f.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-5db2308f5c547f89.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-0f79e2bd77d25c99.rmeta --extern tabled=/opt/rustwide/target/debug/deps/libtabled-6a9d75a630c60c5c.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1344fc06a099c0a1866750fe7d5718e06b6ebddd5a3228080b73805cf9f57bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1344fc06a099c0a1866750fe7d5718e06b6ebddd5a3228080b73805cf9f57bbd", kill_on_drop: false }`
[INFO] [stdout] 1344fc06a099c0a1866750fe7d5718e06b6ebddd5a3228080b73805cf9f57bbd